Good to go.

Installed on a build using WooCommerce and WooTheme Superstore. Implemented well out of the box with the exception of needing to add some CSS styling to change the background color of the badges so they could be seen (they were picking up some of the Woo Style).

I’d recommend the dev change the CSS classes so they could be targeted separately and possibly add a badge that would allow free text to be added in.

Did far better than the plugin I purchased from Code Canyon.